Pith Number

pith:4BXTLBHB

pith:2017:4BXTLBHBWX4XNQK3MJS6NNKTY2

not attested not anchored not stored refs pending

Provable Estimation of the Number of Blocks in Block Models

Bowei Yan, Purnamrita Sarkar, Xiuyuan Cheng

arxiv:1705.08580 v3 · 2017-05-24 · stat.ML · stat.ME

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4BXTLBHBWX4XNQK3MJS6NNKTY2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T00:20:49.007273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e06f3584e1b5f976c15b6265e6b553c691efa19b14d0a0b1b54d70c76e096b3c

Aliases

arxiv: 1705.08580 · arxiv_version: 1705.08580v3 · doi: 10.48550/arxiv.1705.08580 · pith_short_12: 4BXTLBHBWX4X · pith_short_16: 4BXTLBHBWX4XNQK3 · pith_short_8: 4BXTLBHB

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/4BXTLBHBWX4XNQK3MJS6NNKTY2 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: e06f3584e1b5f976c15b6265e6b553c691efa19b14d0a0b1b54d70c76e096b3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9652e3de41a478611ffb455163645f389bcef1549512854771256679096806c8",
    "cross_cats_sorted": [
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2017-05-24T01:42:50Z",
    "title_canon_sha256": "56f24a7a656c521957ca037b53e984a391d73e33baf3e9d7672da2a384c67d11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.08580",
    "kind": "arxiv",
    "version": 3
  }
}